github - ghsa-5wv9-h9hr-4p52

GHSA-5WV9-H9HR-4P52

Vulnerability from github – Published: 2023-06-19 12:30 – Updated: 2025-10-22 00:32

Details

The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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  "aliases": [
    "CVE-2023-27992"
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    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-19T12:15:09Z",
    "severity": "CRITICAL"
  },
  "details": "The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to\u00a0V5.21(AAZF.14)C0, NAS540 firmware versions prior to\u00a0V5.21(AATB.11)C0, and NAS542\u00a0firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.",
  "id": "GHSA-5wv9-h9hr-4p52",
  "modified": "2025-10-22T00:32:44Z",
  "published": "2023-06-19T12:30:22Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27992"
    },
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    },
    {
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      "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products"
    }
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      "type": "CVSS_V3"
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}

CVE-2023-27992 (GCVE-0-2023-27992)

Vulnerability from cvelistv5 – Published: 2023-06-19 11:42 – Updated: 2025-10-21 23:05

Summary

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

Zyxel

References

URL

Tags

https://www.zyxel.com/global/en/support/security-…

Impacted products

Vendor

Product

Version

Zyxel

NAS326 firmware

Affected: < V5.21(AAZF.14)C0

	Zyxel	NAS540 firmware	Affected: < V5.21(AATB.11)C0
	Zyxel	NAS542 firmware	Affected: < V5.21(ABAG.11)C0

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-5WV9-H9HR-4P52

CVE-2023-27992 (GCVE-0-2023-27992)

Tags

Sightings

Nomenclature